Last name Buhain (Buhain 
) , in the world, is quite a rare cognomen. The last name Buhain is characteristic of Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Singapore. In absolute terms, it is the most numerous in Philippines, the United States, and United Arab Emirates.
| VARIANT | COUNTRY |
|---|---|
| Buhain | Singapore, Canada, Philippines, United Arab Emirates, United States |
|
teodoro buhain PH (b. 1937) |
|
| eric buhain Filipino swimmer, PH (b. 1970) |
|